Oxytetracycline, as a part of the drug, has a wide spectrum of antibacterial effect. Effective against most gram-negative (Escherichia coli, Klebsiella spp., Salmonella spp., Proteus spp., Campylobacter spp., Pseudomonas aeruginosa, Bordetella spp., Pasteurella spp., Haemophilus spp., Actinobacillus spp., Brucella spp.) and gram-positive bacteria (Staphylococcus spp., Streptococcus spp., Listeria monocytogenes, Corynebacterium spp., Erysipelothrix rhusiopathiae, Fusobactemm necrophorum, Clostridium spp.), Mycoplasma spp., Chlamydia spp., Rickettsia spp., Borrelia spp.
The drug acts bacteriostatically. Oxytetracycline binds to the 30-S subunit of ribosomes in a bacterial cell. This prevents the inclusion of new amino acids in the peptide chain under construction and leads to the death of microorganisms.
After intramuscular injection, the drug is well absorbed from the injection site and penetrates into most organs and tissues of the body. It reaches the maximum concentration in tissues 30 minutes after administration. The therapeutic level of the antibiotic in the tissues is maintained for 72 hours after a single injection of the drug.
The drug is excreted from the body mainly with urine and bile secretions, in lactating animals - with milk.